I saw Penn & Teller in Vegas a couple years ago. Penn starts the show in a hilarious fashion. He warns the crowd they they might want to leave if they're easily offended. He stated, "I use the lord's name in vain, because that's the only way I know to use it." He then gave a family a couple minutes to leave and as soon as the door closed he yelled, "GODDAMN JESUS CHRIST MOTHER FUCKER!"

I love the word "fuck". I loved the scene in The Wire (love The Wire) when cops went into the crime scene house and did their investigative thing only saying "fuck" with a variety of meanings. Such a useful word!